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// Copyright 2013 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview Closure user agent platform detection.
* @see <a href="http://www.useragentstring.com/">User agent strings</a>
* For more information on browser brand, rendering engine, or device see the
* other sub-namespaces in goog.labs.userAgent (browser, engine, and device
* respectively).
*
*/
goog.provide('goog.labs.userAgent.platform');
goog.require('goog.labs.userAgent.util');
goog.require('goog.string');
/**
* @return {boolean} Whether the platform is Android.
*/
goog.labs.userAgent.platform.isAndroid = function() {
return goog.labs.userAgent.util.matchUserAgent('Android');
};
/**
* @return {boolean} Whether the platform is iPod.
*/
goog.labs.userAgent.platform.isIpod = function() {
return goog.labs.userAgent.util.matchUserAgent('iPod');
};
/**
* @return {boolean} Whether the platform is iPhone.
*/
goog.labs.userAgent.platform.isIphone = function() {
return goog.labs.userAgent.util.matchUserAgent('iPhone') &&
!goog.labs.userAgent.util.matchUserAgent('iPod') &&
!goog.labs.userAgent.util.matchUserAgent('iPad');
};
/**
* @return {boolean} Whether the platform is iPad.
*/
goog.labs.userAgent.platform.isIpad = function() {
return goog.labs.userAgent.util.matchUserAgent('iPad');
};
/**
* @return {boolean} Whether the platform is iOS.
*/
goog.labs.userAgent.platform.isIos = function() {
return goog.labs.userAgent.platform.isIphone() ||
goog.labs.userAgent.platform.isIpad() ||
goog.labs.userAgent.platform.isIpod();
};
/**
* @return {boolean} Whether the platform is Mac.
*/
goog.labs.userAgent.platform.isMacintosh = function() {
return goog.labs.userAgent.util.matchUserAgent('Macintosh');
};
/**
* Note: ChromeOS is not considered to be Linux as it does not report itself
* as Linux in the user agent string.
* @return {boolean} Whether the platform is Linux.
*/
goog.labs.userAgent.platform.isLinux = function() {
return goog.labs.userAgent.util.matchUserAgent('Linux');
};
/**
* @return {boolean} Whether the platform is Windows.
*/
goog.labs.userAgent.platform.isWindows = function() {
return goog.labs.userAgent.util.matchUserAgent('Windows');
};
/**
* @return {boolean} Whether the platform is ChromeOS.
*/
goog.labs.userAgent.platform.isChromeOS = function() {
return goog.labs.userAgent.util.matchUserAgent('CrOS');
};
/**
* @return {boolean} Whether the platform is Chromecast.
*/
goog.labs.userAgent.platform.isChromecast = function() {
return goog.labs.userAgent.util.matchUserAgent('CrKey');
};
/**
* The version of the platform. We only determine the version for Windows,
* Mac, and Chrome OS. It doesn't make much sense on Linux. For Windows, we only
* look at the NT version. Non-NT-based versions (e.g. 95, 98, etc.) are given
* version 0.0.
*
* @return {string} The platform version or empty string if version cannot be
* determined.
*/
goog.labs.userAgent.platform.getVersion = function() {
var userAgentString = goog.labs.userAgent.util.getUserAgent();
var version = '', re;
if (goog.labs.userAgent.platform.isWindows()) {
re = /Windows (?:NT|Phone) ([0-9.]+)/;
var match = re.exec(userAgentString);
if (match) {
version = match[1];
} else {
version = '0.0';
}
} else if (goog.labs.userAgent.platform.isIos()) {
re = /(?:iPhone|iPod|iPad|CPU)\s+OS\s+(\S+)/;
var match = re.exec(userAgentString);
// Report the version as x.y.z and not x_y_z
version = match && match[1].replace(/_/g, '.');
} else if (goog.labs.userAgent.platform.isMacintosh()) {
re = /Mac OS X ([0-9_.]+)/;
var match = re.exec(userAgentString);
// Note: some old versions of Camino do not report an OSX version.
// Default to 10.
version = match ? match[1].replace(/_/g, '.') : '10';
} else if (goog.labs.userAgent.platform.isAndroid()) {
re = /Android\s+([^\);]+)(\)|;)/;
var match = re.exec(userAgentString);
version = match && match[1];
} else if (goog.labs.userAgent.platform.isChromeOS()) {
re = /(?:CrOS\s+(?:i686|x86_64)\s+([0-9.]+))/;
var match = re.exec(userAgentString);
version = match && match[1];
}
return version || '';
};
/**
* @param {string|number} version The version to check.
* @return {boolean} Whether the browser version is higher or the same as the
* given version.
*/
goog.labs.userAgent.platform.isVersionOrHigher = function(version) {
return goog.string.compareVersions(
goog.labs.userAgent.platform.getVersion(), version) >= 0;
};
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